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From:   Dmitry Vyukov <dvyukov@google.com>
Date:   Wed, 10 Feb 2021 12:20:39 +0100
Message-ID: <CACT4Y+Z07_phGvwo+aK1nM4XmmSfHRDBtVotwgGBLY6aZDDKXw@mail.gmail.com>
Subject: Re: upstream test error: BUG: got no fallback coverage:
To:     syzbot <syzbot+e6ca682acbbf21043787@syzkaller.appspotmail.com>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@googlegroups.com>
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Let's pretend this did not happen (since it happened only once)

#syz invalid

On Thu, Feb 4, 2021 at 10:49 AM syzbot
<syzbot+e6ca682acbbf21043787@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    6642d600 Merge tag '5.11-rc5-smb3' of git://git.samba.org/..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=14de59e8d00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f75d66d6d359ef2f
> dashboard link: https://syzkaller.appspot.com/bug?extid=e6ca682acbbf21043787
> userspace arch: arm64
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+e6ca682acbbf21043787@syzkaller.appspotmail.com
>
> 1970/01/01 00:02:05 connecting to host at 10.0.2.10:40353
> 1970/01/01 00:02:05 checking machine...
> 1970/01/01 00:02:05 checking revisions...
> ps_root_recvmsgcb: failed to send message to pid 4476: Connection refused
> 1970/01/01 00:02:05 testing simple program...
> 1970/01/01 00:02:08 BUG: got no fallback coverage:
> loop exited with status 11
> ps_root_recvmsgcb: failed to send message to pid 4508: Connection refused
> ps_root_recvmsgcb: failed to send message to pid 4544: Connection refused
> ps_root_recvmsgcb: failed to send message to pid 4543: Connection refused
> ps_bpf_start_bpf: bpf_open: Invalid argument
> ps_root_recvmsg: Invalid argument
> ps_bpf_start_bpf: bpf_open: Invalid argument
> ps_root_recvmsg: Invalid argument
> ps_bpf_start_bpf: bpf_open: Invalid argument
> ps_root_recvmsg: Invalid argument
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>
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